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Anni [7]
3 years ago
13

Which of the following numbers must be added to complete the square in the equation below?

Mathematics
2 answers:
OLga [1]3 years ago
4 0
First, take half of the coefficient of 18x then square it.

18 / 2 = 9
9^2 = 81

So, D. 81 is the answer.
Elenna [48]3 years ago
4 0

Answer:

I’m pretty sure the answer is 54

Step-by-step explanation:

The top answer seemed to only do the first step in the equation but if you take 81 and subtract it by -27, the complete answer equals 54. NEVERMIND!!! after reading the question again, 81 is most likely the correct answer.

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5 0
4 years ago
Evaluate f(x)=x+6 when x=−2,0, and 5.
Gekata [30.6K]

Answer:

f(-2) = 4

f(0) = 6

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Step-by-step explanation:

You just need to plug in the different values of x into the equation

f(x)=x+6

When x = -2, then f(-2) = -2 + 6 = 4

When x = 0, then f(0) = 0 + 6 = 6

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6 0
3 years ago
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Black_prince [1.1K]

Answer:

The last one

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6 0
3 years ago
The mean of 4 numbers is 21. calculate the sum of the 4 numbers
Ugo [173]

Answer:

84

Step-by-step explanation:

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8 0
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Domain and Range for the graph
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Step-by-step explanation:

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